To be fair, he mentions Jagged Alliance 2 as an example of responsive combat, covers many of the PC classics, and actually touches on a number of other aspects besides reponsiveness I would myself consider important, such as variety of combat options and encounter design, context of combat in the larger game, etc.
Not the greatest article ever, but no reason to bring out the torch and pitchfork, imho.
Have some of you guys actually read the article?